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头痛是病人常有的主诉,几乎每个入一生中或多或少都有过头痛的经历,当然,头痛在神经系统疾病中尤为多见。大多数头痛系因颅内外组织结构中的痛觉神经末梢,即痛觉感受器受到某种物理的、化学的(包括某些生物学的)刺激,产生异常神经冲动,经感觉神经通过相应的神经通路传达到大脑而感知。颅内外各种组织因含痛觉神经末梢多少和性质的不同而分为疼痛敏感的与不敏感的两类,头痛主要发生于痛觉敏感组织。
Headache is often the patient’s chief complaint, almost every life experience more or less had a headache experience, of course, the headache in nervous system diseases is particularly prevalent. Most headaches are caused by some sort of physical, chemical (including some biological) stimulation of the pain-sensory nerve endings in the extracranial tissues, ie, the nociceptors, which produce abnormal nerve impulses that are transmitted through sensory nerves through the corresponding neural pathways To the brain and perception. Intracranial and external various tissues due to the number and nature of pain-containing nerve endings are divided into two types of pain-sensitive and insensitive, headache mainly occurs in pain-sensitive tissue.